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$20 AUD pickup from Belrose 2085 Can ship AU wide +$12 or internationally 1 x fuse holder 1 x 100A fuse 2 x 60A fuses 3 x 80A fuses 3 x 150A fuses

I have 3 fuse holders & 4 x 400A class T fuses (PN: JJN400) 1 fuse holder & 2 fuses have never been used, the other 2 holders & 2 fuses have been used but are in perfect condition. Located in Australia, but can post internationally no issues. Each Fuse: $60AUD / $40USD Each Holder: $80AUD /...

Here's the setup... 2 x 16S LiFePO4 bank All balancing cables come to a junction block From that block I have both the JKBMS, & NEEY active balancer The voltages in the NEEY are spot on, consistent and correct (as per multimeter) The voltage readings on the JKBMS are jumping around a LOT, by...

Broke out into a focus group, re-imagined the design then shifted a few paradigms... New design - now features ribs which clip onto the 20mm bus bars, holding the caps secure in place. In the old design they just sat on top & could be bumped off etc. They also allow side access to the bar for...

Trying to figure it out - but looks like the configured capacity is an input factor too, i've had a few full cycles and i'm still seeing crazy capacity jumps. I've got 2 packs in parallel, I didnt fully test the new pack for capacity - so took the manufacturers word (304Ah) for it & it looks to...

A post for Aus customers that are on AusGrid... raising some awareness! AusGrid have new tariffs that are INSANELY good for batteries - and i'm sure many other fellow DIY battery nerds would benefit. The details: Ausgrid EA960 & EA959 The Ausgrid tariff is a trial residential two-way tariff...

So i'm all up & running & want to do some thermals to see how its all going. 2x5kw Deye hybrids, 2x16kw 48v packs with JK BMS Big DC Cabling is 35mm welding cable, some smaller stuff which is being upgraded. Discharged at 8kw for an hour & did some thermals... EEPERS BMS happy at 35-38c...

The Deye unit gets hot! when running - to the point I couldn't hold my hand on it. This doesnt go well for longevity - drying out caps & degrading their life (Arrhenius equation) So i've been running some 120mm fans just plonked on top - but now i've made a fan shroud/unit that can be put under...

Looking to use one of these with a DIY Lithium in lead acid mode (which i run very successfully with my Deye inverter). However there's little in the manual about configuring the lead acid parameters. Does anyone know 100% & can send screenshots if you can you configure: - Charge voltage -...

I understand the downside of estimating capacity by voltage etc... There's a few voltage charts around however you get different results depending if the battery is being charged/discharged. If the battery is resting at 50% & you apply a load - the voltage instantly drops, however the capacity...

Upgraded my configuration to 48v, so need to ditch all my 24v stuff. Prices are what they cost to purchase new for a reference. 1 x SCC - Victron SmartSolar 100/50 MPPT Solar Charge Controller ($380 AU) 1 x OverKill 8s BMS 100A (Genuine overkill unit) ($148 AU) 1 x JBD 8s BMS 100A (same as...

I'm ordering a pair of 5kw Hybrid inverters from DEYE - price is good & they're making some units. These have CEC approval - https://www.cleanenergycouncil.org.au/industry/products/inverters/approved-inverters They're rated for 5kw, but also do 5kw on battery (most other hybrids are de-rated to...

At times (cloudy day) I need to charge my batteries from the wall - to supplement the solar. (well use my other solar array) I currently use a 8S hobby charger, but changing to 48V so need a 16S charger. Also going "cheap" as its only used occasionally - but most cheap ones are 3.65v/cell, and...

Cheap, quick & easy - they just sit on top of the terminals to help protect against shorts. Have been sized for 280/300AH cells & i put my balance cables in the middle of the bar with a M3x10mm bolt Up on thingiverse: https://www.thingiverse.com/thing:4946812

Just designed & printed a case for the Heltec 8S capacitative balancer - hope it helps someone! https://www.thingiverse.com/thing:4939112

Does anyone know the differences - is it just packing & expandability? Purchase 4 of these & chain them together: Or a single one of these:

Looking for a BMS that goes on the +ve lead, instead of the usual -ve lead. Are there any? Looking at trying an automotive LFP replacement, -ve is common, with 2 x +ve 1 x +ve = starter motor only, bypasses the BMS 1 x +ve = rest of the car, BMS, balanced, usual

Just designed & printed this case for the 8s 100A overkill BMS. (i used the Aliexpress version DJDD? for the template - hope there's no differences?) There's 2-3mm between the heat spreaders & the case, i also use ASA/ABS to print with for heat resistance. I'll be posting up on Thingyverse &...

I'm wondering if my charge controller & BMS are arguing... Setup: I've got 8xCATL300AH in a 24v pack, temps are 5deg-40deg all year round, i'm happy to run them very conservatively for longevity. Victron Smart 100/50 for the charge controller BMS settings as per SteveS' work...

So I was repurposing my old Sharp 220W panels to charge my DIY battery, they were giving 720W in winter on a tilt - so not bad after 10years!!! Then i found out that i can get new panels REALLY CHEAP from distributors! Online via the usual sources they were just a bit too expensive & i keep...

This has probably been done before, and maybe there's a better way - but as a n00b i read the usual sticky post on balancing & in parallel it was going to take AAAAAGES for a 24v 300AH pack at 3.6v So i thought about it & have a really simple way to do it much faster. The issue is that you need...

I'm in Aus, we're 240v & we're talking a household water heater setup. Its a full size electric hot water heater with 2 elements - the top one is a "boost" which is always on, the lower element is wired as off-peak or "controlled load" - which means the power companies turn it on-off when power...